package dp;

public class longestCommonSubsequence {
    public int longestCommonSubsequence(String text1, String text2) {
        char[] nums1 = text1.toCharArray();
        char[] nums2 = text2.toCharArray();
        int len1 = nums1.length;
        int len2 = nums2.length;
        int[][] dp = new int[len1 + 1][len2 + 1];
        int result = 0;
        for (int i = 1; i <= len1; i++) {
            for (int j = 1; j <= len2; j++) {
                if (nums1[i - 1] == nums2[j - 1]){
                    dp[i][j] = dp[i - 1][j - 1] + 1;
                } else {
                    dp[i][j] = Math.max(dp[i - 1][j], dp[i][j - 1]);
                }
                if (dp[i][j] > result){
                    result = dp[i][j];
                }
            }
        }
        return result;
    }
}
